Deadly explosions hit Brussels airport and metro
At least one person has been reported dead, though Belgian broadcaster VRT has put the number killed at 13 so far with a further 35 people injured.
Though the source of the blasts remains unclear, Belgium has raised its terror threat to the highest level. The attack comes just days after the arrest of Salah Abdeslam, the main suspect in the Paris attacks who had been on the run since November.